Everyone should be responsible for their actions.
解决复杂问题的关键是提出正确的因果问题。
"The truth is rarely pure and never simple."
Your most unhappy customers are your greatest source of learning.
战略管理不是一门科学，而是一门艺术。
释义：天之险在于高不可升，地之险在于山川丘陵。王公设险以保卫国家，险的功用非常大。